MicroStation Export KML - hierarachy of elements from 2D drawing not exported correctly

Hey there,

I'm running in multiple issues when exporting a 2D drawing into KML, using latest MSCE 10.17

Some dgn file contains multiple markings data (e.g. lines with different widths, signs, texts etc.)

My workaround is currently to drop all texts/cells and drop all line styles, so I have a file which contains only shapes, polygons or regions. Afterwards, the file is exported to KML

The problem is, elements which overlap each other (like designator over contrast markings) are not exported correctly.

Sometimes the designator is below the contrast marking within the exported file or more elements are created during the export, copared to them in the dgn. 

I also recognize, that it is not possible to modify the 3D export settings when a 2D dgn is opened. This leads to the situation, that elements in the kml  canhave negative and various Z-values, whereby I would expect that they are all 0, when the origin is a 2D file.

The question is now, is there a way to modify the hierarchy during the export, so the correct elements will be on top?

Thanks, 

Matthias